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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

qid
<abbreviation> L. Quater in die, four times a day. ... (05 Mar 2000) ...

ql
<abbreviation> L. Quantum libet, as much as desired. ... (05 Mar 2000) ...

QNB
<abbreviation> Quinuclidinyl benzilate. ... (05 Mar 2000) ...

QO
Symbols for oxygen consumption. ... (05 Mar 2000) ...

QR
<abbreviation> ... Origin: L quantum rectum, however much is correct. ... (05 Mar 2000) ...

QRS complex
<cardiology> The deflections in an electrocardiographic tracing and represent ventricular activity of the heart. ... (13 Nov 1997) ...

QRS interval
The duration of the QRS complex in the electrocardiogram. ... (05 Mar 2000) ...

qs
<abbreviation> L. Quantum sufficiat or satis, as much as suffices. ... (05 Mar 2000) ...

quack medicine
A compound advertised falsely as curative of a certain disease or diseases. ... (05 Mar 2000) ...

quackery
Deliberate misrepresentation of the ability of a substance or device for the prevention or treatment of disease. We may think that the day of patent medicines is gone but look around you and you will see them still. They appeal to our desire to believe that every disease is curable or at least treatable. Quackery also applies to persons who pretend …

quad
<physics> Unit of energy equal to a Quadrillion BTUs (10^15) or roughly one exajoule. ... See: joule, exajoule, BTU. ... (09 Oct 1997) ...

quadrangle
1. <geometry> A plane figure having four angles, and consequently four sides; any figure having four angles. ... 2. A square or quadrangular space or inclosure, such a space or court surrounded by buildings, especially. Such a court in a college or public school in England. ... Origin: F, fr. L. Quadrangulum; quattuor four + angulus an angle. S …

quadrangular
Having four angles. ... Origin: L. Quadrangularis, fr. Quadrangulum, quadrangle ... (05 Mar 2000) ...

quadrangular cartilage
Synonym for nasal septal cartilage ... A thin cartilaginous plate located between vomer, perpendicular plate of the ethmoid, and nasal bones, and completing the nasal septum anteriorly. ... Synonym: cartilago septi nasi, cartilage of nasal septum, cartilaginous septum, pars cartilaginea septi nasi, quadrangular cartilage, septal cartilage. ... (05 Mar …

quadrangular lobule
The main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis. ... Synonym: lobulus quadrangularis, lobus quadratus, lobulus quadratus, quadrate lob …

quadrangular membrane
The elastic fibra membrane that extends from the ventricular fold of the larynx upward to the aryepiglottic fold; it attaches anteriorly to the epiglottis and posteriorly to the lateral margin of the arytenoid and corniculate cartilages. ... Synonym: membrana quadrangularis, Tourtual's membrane. ... (05 Mar 2000) ...

quadrangular space
Musculotendinous formation providing passageway for the axillary nerve, posterior humeral circumflex artery and accompanying veins as they run from the axilla to the superior posterior arm; as the neurovascular structures enter the formation anteriorly, it is bounded superiorly by the shoulder joint, medially by the lateral border of subscapularis, …

quadrangular therapy
Marriage therapy involving the husband and wife and their respective therapists. ... (05 Mar 2000) ...

quadrant
<dentistry> The four parts of your mouth, that is the upper left, the upper right, the lower left, and the lower right. ... (08 Jan 1998) ...

quadrantal
1. A cubical vessel containing a Roman cubic foot, each side being a Roman square foot; used as a measure. ... 2. A cube. ... Origin: L. ... <geometry> Of or pertaining to a quadrant; also, included in the fourth part of a circle; as, quadrantal space. Quadrantal triangle, a spherical triangle having one side equal to a quadrant or arc of 90 deg …

quadrantanopia
Loss of vision in a quarter section of the visual field of one or both eyes; if bilateral, it may be homonymous or heteronymous, binasal or bitemporal, or crossed, e.g., involving the upper quadrant in one eye and the lower quadrant in the other. ... Synonym: quadrantic hemianopia. ... (05 Mar 2000) ...

quadrantic hemianopia
Synonym for quadrantanopia ... Loss of vision in a quarter section of the visual field of one or both eyes; if bilateral, it may be homonymous or heteronymous, binasal or bitemporal, or crossed, e.g., involving the upper quadrant in one eye and the lower quadrant in the other. ... Synonym: quadrantic hemianopia. ... (05 Mar 2000) ...

quadrantic scotoma
A scotoma involving a quarter segment of the central visual field. ... (05 Mar 2000) ...

quadrants
<dentistry> The four parts of your mouth, that is the upper left, the upper right, the lower left, and the lower right. ... (05 Mar 2000) ...

quadrat
Sample units or plots that vary in size, shape, number and arrangements, depending on the nature of the vegetation, site conditions and purpose of study. ... (09 Oct 1997) ...

quadrate
1. Having four equal sides, the opposite sides parallel, and four right angles; square. 'Figures, some round, some triangle, some quadrate.' (Foxe) ... 2. Produced by multiplying a number by itself; square. ' Quadrate and cubical numbers.' ... 3. Square; even; balanced; equal; exact. ' A quadrate, solid, wise man.' ... 4. Squared; suited; corresponden …

quadrate ligament
<anatomy> Fibres that pass from the distal margin of the radial notch of the ulna to the neck of the radius. ... Synonym: ligamentum quadratum, Denuce's ligament. ... (05 Mar 2000) ...

quadrate lobe
A lobe on the inferior surface of the liver located between the fossa for the gallbladder and the fissure for the ligamentum teres. ... Synonym: quadrangular lobule. ... Synonym: precuneus. ... (05 Mar 2000) ...

quadrate lobule
Synonym for quadrangular lobule ... The main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis. ... Synonym: lobulus quadrangularis, lobus quadrat …

quadrate muscle
Synonym for quadratus muscle ... <anatomy> A muscle that is more or less square in shape. ... Synonym: musculus quadratus, quadrate muscle. ... (05 Mar 2000) ...

quadrate muscle of loins
Synonym for quadratus lumborum ... <anatomy, muscle> Origin, iliac crest, iliolumbar ligament, and transverse processes of lower lumbar vertebrae; insertion, twelfth rib and transverse processes of upper lumbar vertebrae; action, abducts trunk; nerve supply, ventral primary rami of upper lumbar spinal nerves. ... Synonym: musculus quadratus lum …

quadrate muscle of sole
Synonym for quadratus plantae ... <anatomy, muscle> Origin, by two heads from the lateral and medial borders of the inferior surface of the calcaneus; insertion, tendons of flexor digitorum longus; action, assists long flexor; nerve supply, lateral plantar. ... Synonym: musculus flexor accessorius, musculus quadratus plantae, accessory flexor m …

quadrate muscle of thigh
Synonym for quadratus femoris muscle ... <anatomy> Insertion, intertrochanteric ridge; origin, lateral border of tuberosity of ischium; action, rotates thigh laterally; nerve supply, nerve to quadratus femoris (sacral plexus). ... Synonym: musculus quadratus femoris, quadrate muscle of thigh. ... (05 Mar 2000) ...

quadrate muscle of upper lip
Synonym for musculus quadratus labii superioris ... Composed of three heads usually described as three separate muscles; they are the caput angulare or levator labii superioris alaeque nasi muscle; caput infraorbitale or levator labii superioris muscle; caput zygomaticum or zygomaticus minor muscle. ... Synonym: quadrate muscle of upper lip. ... (05 M …

quadrate part of liver
The part of the medial segment of the liver which includes the quadrate lobe. ... Synonym: pars quadrata hepatis. ... (05 Mar 2000) ...

quadrate pronator muscle
Synonym for pronator quadratus ... <anatomy, muscle> Origin, distal fourth of anterior surface of ulna; insertion, distal fourth of anterior surface of radius; action, pronates forearm; nerve supply, anterior interosseous. ... Synonym: musculus pronator quadratus, quadrate pronator muscle. ... (05 Mar 2000) ...

quadrature
1. <mathematics> The act of squaring; the finding of a square having the same area as some given curvilinear figure; as, the quadrature of a circle; the operation of finding an expression for the area of a figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas. ... 2. A quadrate; a square. …

quadratus femoris muscle
<anatomy> Insertion, intertrochanteric ridge; origin, lateral border of tuberosity of ischium; action, rotates thigh laterally; nerve supply, nerve to quadratus femoris (sacral plexus). ... Synonym: musculus quadratus femoris, quadrate muscle of thigh. ... (05 Mar 2000) ...

quadratus lumborum
<anatomy, muscle> Origin, iliac crest, iliolumbar ligament, and transverse processes of lower lumbar vertebrae; insertion, twelfth rib and transverse processes of upper lumbar vertebrae; action, abducts trunk; nerve supply, ventral primary rami of upper lumbar spinal nerves. ... Synonym: musculus quadratus lumborum, lumbar quadrate muscle, qua …

quadratus muscle
<anatomy> A muscle that is more or less square in shape. ... Synonym: musculus quadratus, quadrate muscle. ... (05 Mar 2000) ...

quadratus plantae
<anatomy, muscle> Origin, by two heads from the lateral and medial borders of the inferior surface of the calcaneus; insertion, tendons of flexor digitorum longus; action, assists long flexor; nerve supply, lateral plantar. ... Synonym: musculus flexor accessorius, musculus quadratus plantae, accessory flexor muscle of foot, caro quadrata sylv …

quadri-
Four. ... Origin: L. Quattuor ... (05 Mar 2000) ...

quadriceps femoris
<anatomy, muscle> Origin, by four heads: rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis; insertion, patella, and thence by ligamentum patellae to tuberosity of tibia; action, extends leg; flexes thigh by action of rectus femoris; nerve supply, femoral. ... Synonym: musculus quadriceps femoris, musculus quadriceps ext …

quadriceps muscle of thigh
Synonym for quadriceps femoris ... <anatomy, muscle> Origin, by four heads: rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis; insertion, patella, and thence by ligamentum patellae to tuberosity of tibia; action, extends leg; flexes thigh by action of rectus femoris; nerve supply, femoral. ... Synonym: musculus quadricep …

quadriceps reflex
Synonym for patellar reflex ... A sudden contraction of the anterior muscles of the thigh, caused by a smart tap on the patellar tendon while the leg hangs loosely at a right angle with the thigh. ... Synonym: knee jerk, knee phenomenon, knee reflex, knee-jerk reflex, patellar tendon reflex, quadriceps reflex. ... (05 Mar 2000) ...

quadricepsplasty
A corrective surgical procedure on the quadriceps femoris. ... Origin: quadriceps + G. Plastos, formed ... (05 Mar 2000) ...

quadricuspid
Synonym for tetracuspid ... Having four cusps. ... Synonym: quadricuspid. ... (05 Mar 2000) ...

quadridigitate
Synonym: tetradactyl. ... Origin: quadri-+ L. Digitus, digit ... (05 Mar 2000) ...

quadrigeminal
Four-fold. ... Origin: quadri-+ L. Geminus, twin ... (05 Mar 2000) ...

quadrigeminal bodies
See: inferior colliculus, superior colliculus. ... Synonym: corpora quadrigemina. ... (05 Mar 2000) ...

quadrigeminal lamina
Synonym for lamina of mesencephalic tectum ... The roofplate of the mesencephalon formed by the quadrigeminal bodies. ... Synonym: lamina tecti mesencephali, tectum mesencephali, lamina quadrigemina, quadrigeminal lamina, quadrigeminal plate. ... (05 Mar 2000) ...

quadrigeminal plate
Synonym for lamina of mesencephalic tectum ... The roofplate of the mesencephalon formed by the quadrigeminal bodies. ... Synonym: lamina tecti mesencephali, tectum mesencephali, lamina quadrigemina, quadrigeminal lamina, quadrigeminal plate. ... (05 Mar 2000) ...

quadrigeminal pulse
A pulse in which the beats are grouped in fours, a pause following every fourth beat. ... Synonym: pulsus quadrigeminus. ... (05 Mar 2000) ...

quadrigeminal rhythm
A cardiac arrhythmia in which the heartbeats are grouped in fours, each usually composed of one sinus beat followed by three extrasystoles, but a repetitive group of four of any composition is quadrigeminal. ... Synonym: quadrigeminy. ... (05 Mar 2000) ...

quadrigeminous
Fourfold; having four similar parts, or two pairs of similar parts. ... <anatomy> Quadrigeminal bodies, two pairs of lobes, or elevations, on the dorsal side of the midbrain of most mammals; the optic lobes. The anterior pair are called the nates, and the posterior the testes. ... Origin: Quadri- + L. Gemini twins. ... Source: Websters Dictionar …

quadrigeminum
One of the quadrigeminal bodies. ... (05 Mar 2000) ...

quadrigeminus
Synonym: quadruplet. ... Origin: L. ... (05 Mar 2000) ...

quadrigeminy
Synonym for quadrigeminal rhythm ... A cardiac arrhythmia in which the heartbeats are grouped in fours, each usually composed of one sinus beat followed by three extrasystoles, but a repetitive group of four of any composition is quadrigeminal. ... Synonym: quadrigeminy. ... (05 Mar 2000) ...

quadrilateral
1. <geometry> A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines. ... 2. An area defended by four fortresses supporting each other; as, the Venetian quadrilateral, comprising Mantua, Peschiera, Verona, and Legnano. ... <geometry> Complete quadrilateral, the figure made up …

quadrilateral space
Synonym for quadrangular space ... Musculotendinous formation providing passageway for the axillary nerve, posterior humeral circumflex artery and accompanying veins as they run from the axilla to the superior posterior arm; as the neurovascular structures enter the formation anteriorly, it is bounded superiorly by the shoulder joint, medially by th …

quadriparesis
Weakness of all four limbs, both arms and both legs, as for example from muscular dystrophy. ... (12 Dec 1998) ...

quadripedal extensor reflex
Extension of the arm of a hemiplegic patient when turned prone as if on all fours. ... Synonym: Brain's reflex. ... (05 Mar 2000) ...

quadriplegia
Paralysis of all four limbs, both arms and both legs, as from a high spinal cord accident or stroke. ... (12 Dec 1998) ...

quadriplegic
Pertaining to or afflicted with quadriplegia. ... Synonym: tetraplegic. ... (05 Mar 2000) ...

quadripolar
Having four poles. ... (05 Mar 2000) ...

quadrisect
To divide into four parts. ... Synonym: quartisect. ... Origin: quadri-+ L. Seco, pp. Sectus, to cut ... (05 Mar 2000) ...

quadritubercular
Having four tubercles or cusps, as a molar tooth. ... Origin: quadri-+ L. Tuberculum, tubercle ... (05 Mar 2000) ...

quadrivalent
Describes an association of four homologous chromosomes at meiosis. ... (09 Oct 1997) ...

quadruple amputation
Amputation of both arms and both legs. ... (05 Mar 2000) ...

quadruple rhythm
A quadruple cadence to the heart sounds due to the easy audibility of both third and fourth heart sounds, indicative of serious myocardial disease. ... Synonym: trainwheel rhythm. ... (05 Mar 2000) ...

quadruplet
One of four children born at one birth. ... Synonym: quadrigeminus. ... Origin: L. Quadruplus, four fold ... (05 Mar 2000) ...

quail
Small galliform bird. Quail embryos are often use in developmental studies because quail cells can be distinguished from chicken cells, yet the two are sufficiently closely related that it is possible to graft embryonic tissue from one to the other. ... (18 Nov 1997) ...

quail bronchitis virus
A virus, similiar to an adenovirus, closely related antigenically to CELO virus. ... (05 Mar 2000) ...

quaker
1. One who quakes. ... 2. One of a religious sect founded by George Fox, of Leicestershire, England, about 1650, the members of which call themselves Friends. They were called Quakers, originally, in derision. See Friend. 'Fox's teaching was primarily a preaching of repentance . . . The trembling among the listening crowd caused or confirmed the nam …

qualifying facility
A power production facility that qualifies for special treatment under the Public Utility Regulatory Policies Act. A qualifying facility must generate its power using cogeneration, biomass, waste, geothermal energy, or renewable resources, such as solar and wind. PURPA prohibits utilities from owning majority interest in qualifying facilities. ... ( …

qualimeter
<radiobiology> An obsolete device for estimating the degree of hardness of X-rays. ... Origin: L. Qualis, of what kind, + G. Metron, measure ... (05 Mar 2000) ...

qualitative alteration
In electric irritability, a change in which the muscle contracts as readily on application of the anode as on that of the cathode. ... (05 Mar 2000) ...

qualitative analysis
Determination of the nature, as opposed to the quantity, of each of the elements composing a substance. ... (05 Mar 2000) ...

qualitative trait
Synonym for categorical trait ... <genetics> A feature that can conveniently and effectively be analyzed by sorting into classes either because there is no satisfactory way of measuring it (as with blood groups) or because it falls into natural classes so that the variation among classes far exceeds that within classes (e.g., the phenotypic ef …

quality adjusted life year
A year of life adjusted for its quality or its value. A year in perfect health is considered equal to 1.0 qaly. The value of a year in ill health would be discounted. For example, a year bedridden might have a value equal to 0.5 qaly. ... A measurement index derived from a modification of standard life-table procedures and designed to take account o …

quality assurance
Programs of regular assessment of medical and nursing activities to evaluate the quality of medical care. ... (05 Mar 2000) ...

quality assurance, health care
Activities and programs intended to assure or improve the quality of care in either a defined medical setting or a program. The concept includes the assessment or evaluation of the quality of care; identification of problems or shortcomings in the delivery of care; designing activities to overcome these deficiencies; and follow-up monitoring to ens …

quality control
In biotechnology, quality control is essential to ensure purified protein pharmaceuticals are indeed pure and that they are intact and maintain their biological activity. ... (14 Nov 1997) ...

quality control chart
A chart illustrating the allowable limits of error in laboratory test performance, the limits being a defined deviation from the mean of a control serum, most commonly &plusmn;2 SD. ... See: quality control. ... (05 Mar 2000) ...

quality factor
<radiobiology> (Q) A multiplying factor used with absorbed dose to convert to dose equivalent and therefore to express the radiation's effectiveness in causing biological effects. ... (16 Dec 1997) ...

quality indicators, health care
Norms, criteria, standards, and other direct qualitative and quantitative measures used in determinng the quality of health care. ... (12 Dec 1998) ...

quality of health care
The levels of excellence which characterise the health service or health care provided based on accepted standards of quality. ... (12 Dec 1998) ...

quality of life
Refers to the level of comfort, enjoyment, ability to pursue daily activities. Often used in discussions of treatment options. ... (16 Dec 1997) ...

qualm
1. Sickness; disease; pestilence; death. ' thousand slain and not of qualm ystorve [dead]' (Chaucer) ... 2. A sudden attack of illness, faintness, or pain; an agony. ' Qualms of heartsick agony.' ... 3. Especially, a sudden sensation of nausea. 'For who, without a qualm, hath ever looked On holy garbage, though by Homer cooked?' (Roscommon) ... 4. A p …

Quant's sign
<clinical sign> A T-shaped depression in the occipital bone occurring in many cases of rickets, especially in infants lying constantly in bed with pressure on the occiput. ... (05 Mar 2000) ...

quanta
Plural of quantum. ... Origin: L. ... (05 Mar 2000) ...

quantal mitosis
A controversial concept in cellular differentiation proposed by H. Holtzer and defined by him as a mitosis that yields daughter cells with metabolic options very different from those of the mother cell as opposed to proliferative mitoses in which the daughter cells are identical to the mother cell. Implicit in this is the idea that the changes in c …

quantasome
<cell biology> Smallest structural unit of photosynthesis, a particulate component of the thylakoid membrane containing chlorophyll and cytochromes. ... Origin: Gr. Soma = body ... (18 Nov 1997) ...

quantic
<mathematics> A homogeneous algebraic function of two or more variables, in general containing only positive integral powers of the variables, and called quadric, cubic, quartic, etc, according as it is of the second, third, fourth, fifth, or a higher degree. These are further called binary, ternary, quaternary, etc, according as they contain …

quantify
To express as a numerical amount. ... (09 Oct 1997) ...

quantile
Division of a distribution into equal, ordered subgroups; deciles are tenths, quartiles are quarters, quintiles are fifths, terciles are thirds, centiles are hundredths. ... Origin: L. Quantum, how much, + -ilis, adj. Suffix ... (05 Mar 2000) ...

quantitative
Denoting or expressible as quantity, relating to the proportionate quantities or to the amount of the constituents of a compound. ... Origin: L. Quantitativus ... (18 Nov 1997) ...

quantitative alteration
In electric irritability, a gradual loss of contractility in a muscle in response to static, faradic, and galvanic currents successively. ... (05 Mar 2000) ...

quantitative analysis
Determination of the amount, as well as the nature, of each of the elements composing a substance. ... (05 Mar 2000) ...

quantitative genetics
The formal study of measurable genetic traits, traditionally but not necessarily confined to galtonian genetics. ... (05 Mar 2000) ...